Improvement in cans and carriers for milk



I. S. COFFIN. CANS AND CARRIERS FOR MILK Patented July 24, 1877.

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N, FETERQ PHOTO-LITNOGRAPHER. WASHINGTON, D C- UNITED S'mns ISAAC S.COFFIN, OF MANCHESTER, NEW HAMPSHIRE, ASSIGNOR OF ONE- HALF HIS RIGHT TOHENRY B. FAIRBANKS, OF SAME PLACE.

IMPROVEMENT IN CANS AND CARRIERS FOR MILK.

Specification forming part of Letters Patent No. 193,321, dated July 24,1877 application filed June 26, 1877.

To all whom it may concern:

Be it known that I, ISAAC S. COFFIN, of Manchester, in the county ofHillsborough and State of New Hampshire, have invented certain new anduseful Improvements in Can- Tops, of which the following is a specifica-IIIOD This invention relates to certain improvements in the caps orcovers for cans or other vessels, and is particularly designed formilkcans, its object being to provide a simple and effective cover, bymeans of which the can may be hermetically sealed or opened, whenrequired, with little inconvenience.

My invention consists in a I cover or cap hinged to one side of themouth of the can, or an annular seat formed thereon or attached thereto,said cap being provided with an annular groove in which is secured asuitable packing, said groove being adapted to set over the mouth of thecan, and form a tight joint therewith when the cap is secured, the upperside of said cap being provided with upright standards diametricallyopposite each other, in which is journaled a rock-shaft, provided withhooks at each end, adapted to engage lugs on the can or the seat, towhich the cap is hinged, the rock-shaft at its center being providedwith a cam-lever, which serves to set the hooks under the lugs, andsecure the cover, and also as a handle to swing back the cover whenreleased, as more fully hereinafter described.

In the drawings, Figure 1 represents a view of the upper part of acanwith my improved cap secured thereto. Fig. 2 a top view, and Fig. 3 asectional view, of the same.

The letter A represents a milk-can of any convenient pattern, in thepresent instance being formed with a contracted neck, B, to the mouth ofwhich the cap is attached.

The letter C represents an annular seat, which maybe formed on orattached to the neck of the can at its mouth.

To the side of the annular seat adjoining the handle is hinged adisk-shaped cap or cover, D, adapted to fit upon the said seat, andprovided with anannular groove, d, on its under side which is packedwith suitable packing, said groove being adapted to set over the edgesof the annular seat when the cap or cover is down.

The letter E represents two standards arranged diametrically oppositeeach other on the top of the cap or cover D, said standards being bookedat their upper ends, in which hooks are held the opposite ends of arockshaft, F, the extremities of which are bent downward and hooked, soas to engage the lugs Gon the neck of the can or the cap-seat thereof,and confine the cap in position, as hereinafter explained.

The letter H represents a cam-lever, secured to the rock-shaft F, thecam portion of which may be brought to bear upon the center of the capat the same time that the hooks on the rock-shaft engage the lugs on theneck of the can or cap-seat. Said lever is made concave on one side toform a bearing for the thumb, when used as a handle for turning back thecover.

The operation of my invention will be readily understood in connectionwith the foregoing description.

To close the can, the cap is turned down upon its seat and the leverturned so as to cause the hooks on the rock-shaft to engage the lugs onthe can. At the same time the cam portion of the lever begins to bearupon the top' of the cap, causing the cap to hermetically close the canwhen the lever is at the end of its movement.

To open the can, the motion of the lever is reversed, and after thehooks are freed from the lugs the lever falls in position to be used asa thumb-handle, for turning back the cap, so as to uncover the mouth ofthe can.

What I claim, and desire to secure by Letters Patent, i's-- l. Thecombination, with a milk-can, of a hinged cap, provided with arock-shaft having hooked ends adapted to engage with lugs attached tothe can, and with a cam-lever, adapted to bear uponthe top of the can,and secure the cap hermetically thereon, substantially as set forth.

2. The combination of the cap-seat secured to the neck of the can, thecap hinged there- 011,2!16. provided with an annaulargqroo-we on,Ingtestimony that I claim the foregoingiI itsu'nder's'ide containingpack-ing,-alnd adapted 1 have hereunto-set my hand in the preseuceiof t0fit over the cap-seat, and with a cam-lever the subscribing witnesses.

and rock-shaft, provided with hooked ends ISAAC S. OOFFIN. adapted toengage upon lugs 0n the can, Witnesses:

substantially as and for the purposes set CHAS. .T, NEWMAN,

forth. RICHARD J. RGQQD'WIN.

